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Old 05-16-2014, 08:30 PM   #1
JulioK
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Identifying transmission

Is there a good resource that will help me identify the transmission in my 1972 c10 lwb stepside. It has the 307 motor. F
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Old 05-16-2014, 08:47 PM   #2
Carmen Black
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Re: Identifying transmission

If it is an automatic, then page 10 of the LMC truck catalog has a diagram showing what the different transmission pans look like from the bottom.

If you do not have a catalog, you should order one. I am not recommending buying from them, but the pictures makes for a great assembly manual. You can also look at it online on their website.
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Old 05-16-2014, 08:49 PM   #3
JulioK
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Re: Identifying transmission

It's a 3 speed manual on the column
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Old 05-16-2014, 09:37 PM   #4
Lattimer
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Re: Identifying transmission

3 OTT are all Saginaws.
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My build http://67-72chevytrucks.com/vboard/s...d.php?t=559881
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Old 05-16-2014, 09:43 PM   #5
SS Tim
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Re: Identifying transmission

Its generally known even in the parts catalogs as a truck three-speed Saginaw, used behind 250, 292 and 307 engines, you might find it on a build sheet as code ZW4. 350 and 400 C10s and all K10s used a HD version with slghtly different gear ratios
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Old 05-16-2014, 11:32 PM   #6
LSUMurse
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Re: Identifying transmission

I find a lot of info on these online manual things. I'm not really sure what they are, but they're cool to look through.

http://www.gmheritagecenter.com/docs...olet-Truck.pdf
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